Added code coverage settings and configuration to ignore debug-related lines of code.

 - Legacy-Id: 13817

Author: levkowetz

ietf/settings.py

@@ -471,7 +471,7 @@ def skip_unreadable_post(record):
 ]
 
 # These are filename globs.  They are fed directly to the coverage code checker.
-TEST_CODE_COVERAGE_EXCLUDE = [
+TEST_CODE_COVERAGE_EXCLUDE_FILES = [
     "*/tests*",
     "*/admin.py",
     "*/migrations/*",
@@ -493,6 +493,15 @@ def skip_unreadable_post(record):
     "ietf/stats/backfill_data.py",
 ]
 
+# These are code line regex patterns
+TEST_CODE_COVERAGE_EXCLUDE_LINES = [
+    "coverage: *ignore",
+    "debug\.",
+    "unreachable\([^)]*\)",
+    "if settings.DEBUG",
+    "if __name__ == .__main__.:",
+]
+
 # These are filename globs.  They are used by test_parse_templates() and
 # get_template_paths()
 TEST_TEMPLATE_IGNORE = [
@@ -508,7 +517,7 @@ def skip_unreadable_post(record):
 TEST_CODE_COVERAGE_CHECKER = None
 if SERVER_MODE != 'production':
     import coverage
-    TEST_CODE_COVERAGE_CHECKER = coverage.Coverage(source=[ BASE_DIR ], cover_pylib=False, omit=TEST_CODE_COVERAGE_EXCLUDE)
+    TEST_CODE_COVERAGE_CHECKER = coverage.Coverage(source=[ BASE_DIR ], cover_pylib=False, omit=TEST_CODE_COVERAGE_EXCLUDE_FILES)
 
 TEST_CODE_COVERAGE_REPORT_PATH = "coverage/"
 TEST_CODE_COVERAGE_REPORT_URL = os.path.join(STATIC_URL, TEST_CODE_COVERAGE_REPORT_PATH, "index.html")

ietf/utils/test_runner.py

@@ -347,8 +347,10 @@ def code_coverage_test(self):
             # Save to the .coverage file
             checker.save()
             # Apply the configured and requested omit and include data 
-            checker.config.from_args(ignore_errors=None, omit=settings.TEST_CODE_COVERAGE_EXCLUDE,
+            checker.config.from_args(ignore_errors=None, omit=settings.TEST_CODE_COVERAGE_EXCLUDE_FILES,
                 include=include, file=None)
+            for pattern in settings.TEST_CODE_COVERAGE_EXCLUDE_LINES:
+                checker.exclude(pattern)
             # Maybe output a html report
             if self.runner.run_full_test_suite:
                 checker.html_report(directory=settings.TEST_CODE_COVERAGE_REPORT_DIR)